GND Euroshield Ground Connected to ground
0 MIDI Input Receives MIDI input
1 MIDI Output Sends MIDI output
2 Button Input Pressed=LOW; Normal=HIGH
3 LED 1 (Bottom) O=LOW; ON=HIGH
4 LED 2 O=LOW; ON=HIGH
5 LED 3 O=LOW; ON=HIGH
6 LED 4 (Top) O=LOW; ON=HIGH
7 Not connected
8 Not connected
9 Audio CODEC BCLK Same as PJRC audio shield
10 Not connected
11 Audio CODEC MCLK Same as PJRC audio shield
12 Not connected
13 Audio CODEC RX Same as PJRC audio shield
14 Not connected
15 Not connected
16 Not connected
17 Not connected
18 Audio CODEC SDA Same as PJRC audio shield
19 Audio CODEC SCL Same as PJRC audio shield
20 Upper Pot Input Range: 0 to 1023
21 Lower Pot Input Range: 0 to 1023
22 Audio CODEC TX Same as PJRC audio shield
23 Audio CODEC LRCLK Same as PJRC audio shield
3.3V Used by Euroshield
AGND Not connected
Vin Power to Teensy +5V supplied by euroshield
